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Related to Isuprel: Isoprenaline, atropine, Nitropress, Nipride


trademark for preparations of isoproterenol, a sympathomimetic bronchodilator and cardiac stimulant.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

isoproterenol hydrochloride


Pharmacologic class: Sympathomimetic, beta1-adrenergic and beta2-adrenergic agonist

Therapeutic class: Vasopressor, bronchodilator, antiasthmatic

Pregnancy risk category C


Acts on beta2-adrenergic receptors, causing relaxation of bronchial smooth muscle; acts on beta1-adrenergic receptors in heart, causing positive inotropic and chronotropic effects and increasing cardiac output. Also lowers peripheral vascular resistance in skeletal muscle and inhibits antigen-induced histamine release.


Injection: 20 mcg/ml, 200 mcg/ml

Indications and dosages


Adults and children: 0.5 to 5 mcg/minute by continuous I.V. infusion

Heart block; ventricular arrhythmias

Adults: Initially, 0.02 to 0.06 mg I.V., then 0.01 to 0.2 mg I.V. or 5 mcg/minute I.V. Or initially, 0.2 mg I.M., then 0.02 to 1 mg I.M., depending on response. Or initially, 0.2 mg subcutaneously, then 0.15 to 0.2 mg subcutaneously, depending on response.

Bronchospasm during anesthesia

Adults: 0.01 to 0.02 mg I.V., repeated when necessary


• Angina pectoris

• Angle-closure glaucoma

• Tachyarrhythmias

• Tachycardia or heart block caused by digitalis intoxication

• Ventricular arrhythmias that warrant inotropic therapy

• Labor, delivery, breastfeeding


Use cautiously in:

• renal impairment, unstable vasomotor disorders, hypertension, coronary insufficiency, chronic obstructive pulmonary disease, diabetes mellitus, hyperthyroidism

• history of cerebrovascular accident or seizures

• elderly patients.


• Give each 0.02-mg I.V. dose by direct injection over 1 minute, or by I.V. infusion, as ordered. Always use continuous infusion pump to deliver infusion.

Adverse reactions

CNS: tremors, anxiety, insomnia, headache, dizziness, asthenia, nervousness

CV: palpitations, tachycardia, angina, rapid blood pressure changes, arrhythmias, cardiac arrest, Stokes-Adams attacks

EENT: pharyngitis, visual blurring

GI: nausea, vomiting, heartburn

Metabolic: hyperglycemia

Respiratory: bronchitis, dyspnea, increased sputum, pulmonary edema, bronchospasm

Skin: diaphoresis

Other: parotid gland swelling (with prolonged use), pallor


Drug-drug. Cyclopropane, epinephrine, halogenated general anesthetics: increased risk of arrhythmias

Propranolol, other beta-adrenergic blockers: antagonism of bronchodilating effects

Drug-diagnostic tests. Glucose: increased level

Patient monitoring

• During I.V. administration, monitor ECG and vital signs carefully.

• Assess patient's response to drug and adjust I.V. infusion rate accordingly.

• Closely monitor arterial blood gas values, urine output, and central venous pressure.

Stay alert for rebound bronchospasm.

Patient teaching

• Assure patient that he'll be monitored closely.

McGraw-Hill Nurse's Drug Handbook, 7th Ed. Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved


A trademark for the drug isoproterenol hydrochloride.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
In conjunction, the Isoproterenol Hydrochloride Injection is available in a single dose vial containing 0.2 mg per 1ml or 1 mg/5 ml, Isuprel, according to the company.
M2 PHARMA-May 17, 2016-Valeant Pharmaceuticals implements expanded discounts for Nitropress & Isuprel via GPO
Cummings sought documents from Valeant in August to explain how, within a single day, it raised the price of two drugs, Nitropress and Isuprel, by 212 percent and 525 percent, respectively, the company rejected his requestAaAaAeAeAaAeAeA on the basis that such information was "hi proprietary and confidential."
Metered-dose inhaler Albuterol (Ventolin, Proventil) Epinephrine (Medihaler-Epi, Primatene Mist) Isoethadne (Bronchometer) Isoproterenol (Isuprel Medihaler) Isoproterenol and phenylephrine (Duo-Medihaler) Metaproterenol (Metaprel, Alupent) Pirbuterol (Maxair) Salmeterol (Serevent) Terbutaline (Breathair)
M2 EQUITYBITES-May 17, 2016-Valeant Pharmaceuticals implements expanded discounts for Nitropress & Isuprel via GPO